I have the problem of working with FLUTTER WEB and I need to read a QR code accessing the camera. From what I have investigated, there is no library for this and in some forums, they suggest using the JS and HTML libraries in web flutter to be able to carry out the implementation.
I also have not found many guides or tutorials on how this is done, therefore any help would be appreciated.
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I'm currently trying to create an audioplayer in Flutter Web, which is also able to visualize the bytefrequencydata. I already built this app in Angular but i just don't know how to access the data via audiocontext like in js.
I searched many libraries but none seems to provide the option to create an analyser node,
There is the standard dart:web_audio lib, but I can't use that in Flutter.
I am getting really desperate since there is also not a single tutorial to find which shows how to build such an app for flutter web, or at least I can't seem to find one.
The app only needs to run for flutter web.
A little help to get me on the right tracks would be much appreciated.
I have an application, written in flutter, that is heavily dependent on the feature of scanning pdf-417 type codes. In the Android port, it works easily, using the qr_code_scanner 0.0.13 library from pub.dev. I need a web application, for various reasons, and I want to implement the scanning functionality in it. I have tried searching librarys that support the web also, but couldn't find anything relevant. I tried creating a html/js scanner webpage, with zxing-js, that works in a normal browser, but not in the flutter webview, which uses the easy_web_view pub.dev package. It seems from the errors, that it cannot access the camera. What should be the easiest way of solving this? Thanks in advance for your answers.
You can use this package that support web, android and IOS in flutter.
Also see this link
I'm using the webview_flutter library which as I understand is the recommended library for WebView in flutter based on the fact that this is the library that is used by Google in their video tutorials such as this one: Using WebViews in Flutter - Flutter In Focus.
Now I'm trying to understand how to accomplish 2 tasks using this library:
How to get notified on url redirections in WebView?
How to prevent url redirections in WebView?
During my research to found answers to those questions I see that people recommend using another library
for showing WebView and getting url redirections notifications, but those libraries have other problems (for example: shown AlertDialog will appear beneath the WebView and not above it) and I always will prefer to use the lib that is recommended by the creators of the platform (Google in this case).
The Questions is: Did anyone accomplished those tasks using this library or have a code sample to illustrate how it's done using this library?
I have recently developed an Android App with Google's Flutter Framework. When taking a deeper look into what is going on when the app compiles I saw that flutter builds four blobs of data (non-ELF binary). How does the Flutter engine load that code (my developed source code if I am not mistaken) at runtime?
I searched the Flutter engine documentation for more information, but the only thing I could find is, that the engine "maps in" those blobs (called snapshots);
Source: https://github.com/flutter/flutter/wiki/Flutter-engine-operation-in-AOT-Mode)
How does that "mapping in" actually work? I understand, that the flutter engine can communicate with the underlying android runner app via JNI, but how does it load my developed Dart Code?
I tried to read the flutter engine source code, but it's written in C++ and I'm rather unfamiliar with that.
So if anyone has a deeper insight into the startup process of a flutter app for android any new information or suggestions would be appreciated, I can't seem to be able to wrap my head around what's going on with those binary data files.
I’m kind of expecting the impossible, but asking anyway to ensure I’ve not missed out on any great ideas.
I’ve tried a couple of Flutter QR code scanner libraries, but as I was kind of expecting, none of those would run when I used the web beta support in Chrome for instance.
My question is, is there a Flutter QR code scanner library that works for iOS, Android and Web?
If not, is there a way to write this in Flutter for Web specifically?
There was one Stack Overflow question of running a QR scanner JavaScript library inside a WebView and trying to run a Web version which the post indicated faced issues with camera streaming. Is this a possible approach that would translate to Web?
Is there any other way to have a QR code scanner in Flutter to run in Web?
You could use an API like http://goqr.me/api/ in your flutter web project. You just have to use the read command on their api. I think it returns a response in either json or xml. If that isn't enough there are othe apis just search it till you find a cool one